<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title></title>
  </head>
  <body>
    <div id="app">
      <p>{{msg}}</p>
      <input type="text" name="" id="" v-model="msg">
    </div>
    <script src="./vue.js"></script>
    <script>
      const vm=new Vue({
        el:'#app',
        data:{msg:""},
        methods:{},
       })
 
    </script>
  </body>
</html>